I think the point is that once this site grows to 5 times what it is now, he wont have to. 

k00b doing this is the only subsidy i approve of lol

stack_harder

Also, as the site grows the rewards will grow. 
In the future, k00b wont have to put in the 100k. 

Satosora

bitcoin

If BTC hit a million tomorrow, what would you do?

As long as k00b continues dumping 100k into the rewards pool every day, then people will keep zapping like they do today. If they successfully find advertisers, then the rewards pool will be bigger and people will zap even more.